Gradient rendering issue

[DK]

Hi,
I just rendered out an image sequence at 1980 x 1020. The image has a slight gradient from top to bottom. I set the render to .png and I am getting bars of gradient rather than a smooth transition. Hard to see but they are there. I know this as when I import into Vegas and try to render a transition, (fade from black), the bars are being picked up and made worse. Can anyone advise?
See image below:

[chucky]

Hi,
I just rendered out an image sequence at 1980 x 1020. The image has a slight gradient from top to bottom. I set the render to .png and I am getting bars of gradient rather than a smooth transition. Hard to see but they are there. I know this as when I import into Vegas and try to render a transition, (fade from black), the bars are being picked up and made worse. Can anyone advise?
See image below:

I use a similar pipeline and I don't see bars .
Maybe you could try a little noise on that layer?

[DK]

I added a noise grain level of 10 and still get the bars though the noise?
Anyone have any ideas what this might be? The evidence is there?

D.K

[synthsin75]

Do you have an example file I could see?

[DK]

Hi Wes,
I was just preparing the file for you when I noticed I had replaced the sky background with a .png file to save on size. It was the .png file that was causing the bars as I had zoomed in quite close. My bad.

Thanks for responding.
D.K

[synthsin75]

Glad to hear you got it sorted, David.

[DK]

I was also trying to keep memory use down as I was experiencing AS crashes using multi thread rendering. Apparently there may be a small memory leak which I reported on Mantis. Funny how a few little bugs like that can get you extra edgy I totally forgot I replaced the vector background with a png

Cheers and thanks again Wes.
D.K

[chucky]

[DK]

Thanks Chucky...I feel a bit like Mulder..."The evidence is there" LOL!

Cheers
D.K